number instead of expression

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Sep 27, 2023, 10:53:27 AM9/27/23

to '68th' via FriCAS - computer algebra system

Hello,

sum2 := sum(cos(%pi*i/n), i = 1..n)

eval(sum2, n=10)

gives me an expression. How do I get a real number instead?

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Sep 27, 2023, 11:08:06 AM9/27/23

to '68th' via FriCAS - computer algebra system

After the to lines above use:

numeric(%)

--
Waldek Hebisch

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Sep 28, 2023, 10:55:30 AM9/28/23

to fricas...@googlegroups.com

> numeric(%)

Thank you.

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